@@ -11,6 +11,7 @@ addons:
     sources:
       - ubuntu-toolchain-r-test
     packages:
+      - gdb
       - gcc-4.9
       - g++-4.9
       - gfortran-4.9
@@ -23,6 +24,7 @@ branches:
     - master
 
 before_install:
+  - cat /proc/sys/kernel/core_pattern
   - export XROOT=~/xroot
   - tools/extras/travis_install_bindeps.sh $XROOT
 
 
@@ -75,10 +75,14 @@ test: test_compile
 	@{ result=0;			\
 	for x in $(TESTFILES); do	\
 	  printf "Running $$x ...";	\
-	  ./$$x >$$x.testlog 2>1;	\
+	  ./$$x >$$x.testlog 2>&1;	\
 	  if [ $$? -ne 0 ]; then	\
 	    echo "... FAIL $$x";	\
 	    result=1;			\
+	    if [ -n "$TRAVIS" ] && [ -f core ] && command -v gdb >/dev/null 2>&1; then	\
+	      gdb $$x core -ex "thread apply all bt" -batch >>$$x.testlog 2>&1;		\
+	      rm -rf core;		\
+	    fi;				\
 	  else				\
 	    echo "... SUCCESS";		\
 	    rm -f $$x.testlog;		\
 
@@ -50,4 +50,4 @@ make_kaldi() {
 #make_kaldi matrix/test
 
 make_kaldi all -j$MAXPAR
-make_kaldi test
+make_kaldi test -k